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在工业与民用建筑、公路、铁路、桥梁、水利、电力等各项工程的地质勘探中,属于复盖层部分的软基钻探及取样占有很大的比重,软基取样目前主要应解决好两个问题:一是取样的质量;二是钻探取样的速度与效率,严重影响地质成果及工程地质结论的准确性和速度。不管采取何种钻探方法及钻探工艺,取样钻具与钻探设备的性能是否先进与适用将是一个重要的因素。
In geological exploration of various projects such as industrial and civil buildings, highways, railways, bridges, water conservancy and electric power, soft base drilling and sampling, which belong to the overburden, occupy a large proportion. Currently, soft base sampling should mainly solve two The first is the quality of sampling; the second is the speed and efficiency of drilling sampling, seriously affecting the accuracy and speed of geological results and engineering geological conclusions. Regardless of the drilling method and drilling process, the performance of sampling tools and drilling equipment is an important factor.